Coolant Heater

DBW 2010.74Diesel - 24 Volt

P/N FMTV2010.74

Service Parts List for FMTV

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Contents FMTV - DBW 2010.74

Topic

Heater overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 3

Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4

Parts for burner head. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 1, 2, 3

Parts for heat exchanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 4, 5

Parts for nozzle preheat system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 6

Parts for coolant circulation pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 7

Electrical parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 8

Diagnostic and service equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 9

For additional accessory parts refer to the accessories catalogue.

For replacement heater see:

DBW 2010.74 . . . . .24 V Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 4

Column A/N: lndicates which parts are modified, which parts are new:A = modification N = new part

Column Description: Sub-assemblies or components (marked by a point) - offset to the right - are contained inthe assembly which is offset one point less.

Example:fuel pump = assembly• solenoid valve = sub-assembly• • gasket = component

The parts dependent on 12 Volt with red label or dotvoltage are marked: 24 Volt with green label or dot

Subject to modification

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Overview DBW 2010 Coolant Heater

1 Electronic control unit

2 Drive motor

3 Electronic ignition unit

4 Coupling (clutch halves)

5 Combustion air fan

6 Fuel solenoid valve

7 Electrode holder

8 Water outlet

9 Air bleed screw

10 Ignition electrodes

11 Fuel nozzle

12 Overheat fuse

13 Control thermostat

14 Overheat thermostat

15 Water inlet

16 Heat exchanger

17 Combustion chamber

18 Combustion air swirler

19 Exhaust outlet

20 Flame detection photo eye and disc

21 Fuel pump

22 fuel pipes

23 Combustion air intake with adjusting shutter

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ItemQuantity

Part No. A/N Description RemarksDBW 2010

FMTV - DBW 2010.74 24 Volt, Diesel Coolant Heater

no fig. 1 920502 DBW 2010.74 24 Volt, Diesel replacement heater

Parts for burner head

1 1 30607B electronic control unit 24 V

2 1 362107 retaining clip - control unit

3

4 1 101846 electronic ignition unit 24 V

5 8 5011918A screw M3.5 x 14

6-9

10 1 350427 air intake socket Ø 80mm

11 1 436216 protection cover alternate # 428191

12 1 50901517 clamp - nylon white Ø 5/8 in.

13 4 5012768A washer - lock A4.3 DIN 6798

14 4 5013476A screw M4 x 12

15 1 425079 drive motor - complete 24 V

16 1 113665 cable tie - nylon 281mm lg.

17 1 5042505B flange

18 2 9036130A clutch half replace in pairs

19 3 90770B screw - allen socket M5 x 16 8.8 DIN 912

20 2 5012768A washer - lock A4.3 DIN 6798

21 2 5013476A screw M4 x 12

FMTV - DBW 2010.74 - fig. 1

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ItemQuantity

Part No. A/N Description RemarksDBW 2010

Parts for burner head

1 1 50434795A harness - DBW 2010

2 1 50301841A motor carrier

3 1 1322488A impeller with shaft

4 4 5012747A washer - lock A5 DIN128

5 4 50148210A screw - allen socket M5 x 35 DIN 912

6 1 50378313A bearing set - impeller mount

7 1 50412244A gasket ring Ø 130mm

8 1 5022567A blower housing

9 2 298964 rubber grommet left

10 2 299995 rubber grommet right

FMTV - DBW 2010.74 - fig. 2

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ItemQuantity

Part No. A/N Description RemarksDBW 2010

Parts for burner head

1 1 322091 fuel solenoid and valve assembly 24 V

2 1 1319389A • fuel solenoid repair kit

3 1 260487 • • O-ring seal

4

5 1 66185A clamp - electrodes

6 2 274313 electrodes - ignition

7 1 5012014A screw M6 x 20 DIN 933

8 1 152560 washer - locking A6 DIN 128

9

10 1 215171 flame detection photocell

11 1 378232 photocell plate

12 1 5012716A circlip A22 DIN 7993

13 1 147699 screw - self tapping M4 x 6 DIN 7985

14 1 5088641A nozzle - fuel 0.35 GPH, 60° cone

15 1 412198 holder - nozzle

16-19

20 1 5000303A fuel pump - replacement kit DBW 2010 aluminum body pump

21 1 5000177A • fuel pump 10 bar (145 psi) aluminum body pump

22 1 1320547A • • valve - pressure control

23 1 310344 • • filter screen

24 1 50275476A • pipe - pressure

25 1 111372 line - fuel suction

26 1 345288 line - fuel return

27 4 5012733A washer - copper A10 x 13.5 DIN 7603Cu

FMTV - DBW 2010.74 - fig. 3

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28 2 150754 bolt - banjo DIN 7643LL6

29 2 5012769A screw - allen socket M4 x 30 8.8 DIN 912

30 2 5012746A washer - lock A4 DIN 128

31 1 371289 gear - spur straight

32 1 152390 circlip M6 x 0.7 DIN 471

33 4 90770B screw - allen socket M5 x 16 8.8 DIN 912

34

35 1 103504 plate - nozzle holder

36 2 488631 screw - combination AM5 x 12

ItemQuantity

Part No. A/N Description RemarksDBW 2010

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ItemQuantity

Part No. A/N Description RemarksDBW 2010

Parts for heat exchanger

1 1 26553A combustion chamber

2 1 5013070A cable clamp

3 1 352497 cotter pin

4 1 50123084A heat exchanger - DBW 2010

5 2 50461555A nut - hex flange M6 DIN 267

6 2 5011883A pin - grooved 6 x 16 DIN 1425 zinc plated steel

7 2 5012767A eye bolt AM6 x 45 DIN 444

8 1 112388 cap - bleeder valve black rubber

9 1 9810235 bleeder valve

10 1 1321117A well plug for overheat fuse

11 1 289329 bracket - copper for overheat and control thermostats

FMTV - DBW 2010.74 - fig. 4

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ItemQuantity

Part No. A/N Description RemarksDBW 2010

Parts for heat exchanger

1 1 487627 cap - thermostat protection

2 1 319430 clamp - nylon white Ø 8mm

3 1 5011491A screw - self tapping M4 x 8 DIN 7985

4 1 273481 screw for brackets and protection cap

5 1 273473 bracket - buss bar

6 1 298816 bracket

7 1 406287 fuse - overheat yellow 138° C (280° F)

8 1 354902 thermostat - control 75° C (167° F) red/green

9 1 608719A thermostat - overheat 107° C (225° F) auto reset

FMTV - DBW 2010.74 - fig. 5

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ItemQuantity

Part No. A/N Description RemarksDBW 2010

Parts for nozzle preheat system

1 1 19723B clip - nozzle preheat element

2 1 50420042A element - nozzle preheat 24 V

3 1 603547A thermostat assembly - preheat

4 1 5060354A • thermostat - preheat

5 1 104690 • bracket

6 1 901401 relay - preheat 24 V

7 1 412198 holder - nozzle

FMTV - DBW 2010.74 - fig. 6

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ItemQuantity

Part No. A/N Description RemarksDBW 2010

Parts for coolant circulation pump

1 1 5013067A coolant circulation pump U4810 24 V

2 1 400556 housing kit - U4810 pump

3 1 1322877A seal kit - U4810 pump

FMTV - DBW 2010.74 - fig. 7

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X = Quantity as required

ItemQuantity

Part No. A/N Description RemarksDBW 2010

Electrical parts

1 X 178705 connector housing - male 1-pin use terminal # 1320228A (female)

2 X 178799A connector housing - female 1-pin use terminal # 5012748A (male)

3 X 5012736A connector housing - male 2-pin use terminal # 1320228A (female)

4 X 5012737A connector housing - female 2-pin use terminal # 5012748A (male)

5 X 178721 connector housing - male 2-pin use terminal # 1320228A (female)

6 X 620275 connector housing - female 2-pin use terminal # 5012748A (male)

7 X 178810 connector housing - female 4-pin use terminal # 5012748A (male)

no fig. X 178748 connector housing - male 4-pin use terminal # 1320228A (female)

8 1 328529 connector housing - male 6-pin use terminal # 1320228A (female)

9 1 178764 connector housing - male 8-pin use terminal # 1320228A (female)

10 1 901542 socket - relay use terminal # 1320228A (female)

11 X 1320228A terminal - female Quantity 50

12 X 5012748A terminal - male

13 2 620295 terminal - ring Ø 8mm

14 1 901401 relay 24 V

15 1 14878A fuse holder

16 2 905610 fuse - ATO red 10 amp

17 1 24981A fuse - ATO blue 15 amp

18-19

20 1 906197A harness - FMTV - DBW 2010 24 V

FMTV - DBW 2010.74 - fig. 8

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40

80

120

160

200

100

1 2 3 4

LDS18 Special

Bearing Grease

RED

Marking / Locking Paint

5

6

Dielectric S

ilicone

Grease 2 oz. Tube

7

ItemQuantity

Part No. A/N Description RemarksDBW 2010

Diagnostic and service equipment

1 1 440280 diagnostic testing apparatus

2 1 905491A extension harness for diagnostic testing apparatus 1.5 m (5 ft.)

3 1 310646 electrode alignment setting gauge

4 1 600190 fuel pressure gauge with adapter

5 1 143820 bearing grease - isoflex LDS18 special - 400 gram tube

6 1 154245 locking paint - red

7 1 50000043 dielectric silicone grease 2 oz. for electrical connectors (anti-corrosion)

no fig. 1 LIT699745A service and repair manual - DBW Series

FMTV - DBW 2010.74 - fig. 9

Org. 06/2004 Rev. 07/2021 P/N FMTV2010.74

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Technical Assistance HotlineUSA: (800) 555-4518Canada: (800) 667-8900

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